197215980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:288

約数の個数: 192

約数和(自身を含む): 640120320

約数和(自身を除く): 442904340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 39, 51, 52, 60, 65, 68, 78, 85, 102, 107, 130, 139, 156, 170, 195, 204, 214, 221, 255, 260, 278, 321, 340, 390, 417, 428, 442, 510, 535, 556, 642, 663, 695, 780, 834, 884, 1020, 1070, 1105, 1284, 1326, 1390, 1391, 1605, 1668, 1807, 1819, 2085, 2140, 2210, 2363, 2652, 2780, 2782, 3210, 3315, 3614, 3638, 4170, 4173, 4420, 4726, 5421, 5457, 5564, 6420, 6630, 6955, 7089, 7228, 7276, 8340, 8346, 9035, 9095, 9452, 10842, 10914, 11815, 13260, 13910, 14178, 14873, 16692, 18070, 18190, 20865, 21684, 21828, 23630, 23647, 27105, 27285, 27820, 28356, 29746, 30719, 35445, 36140, 36380, 41730, 44619, 47260, 47294, 54210, 54570, 59492, 61438, 70890, 70941, 74365, 83460, 89238, 92157, 94588, 108420, 109140, 118235, 122876, 141780, 141882, 148730, 153595, 178476, 184314, 193349, 223095, 236470, 252841, 283764, 297460, 307190, 354705, 368628, 386698, 446190, 460785, 472940, 505682, 580047, 614380, 709410, 758523, 773396, 892380, 921570, 966745, 1011364, 1160094, 1264205, 1418820, 1517046, 1843140, 1933490, 2320188, 2528410, 2900235, 3034092, 3286933, 3792615, 3866980, 5056820, 5800470, 6573866, 7585230, 9860799, 11600940, 13147732, 15170460, 16434665, 19721598, 32869330, 39443196, 49303995, 65738660, 98607990, 197215980]

約数ペア:

[(1, 197215980), (2, 98607990), (3, 65738660), (4, 49303995), (5, 39443196), (6, 32869330), (10, 19721598), (12, 16434665), (13, 15170460), (15, 13147732), (17, 11600940), (20, 9860799), (26, 7585230), (30, 6573866), (34, 5800470), (39, 5056820), (51, 3866980), (52, 3792615), (60, 3286933), (65, 3034092), (68, 2900235), (78, 2528410), (85, 2320188), (102, 1933490), (107, 1843140), (130, 1517046), (139, 1418820), (156, 1264205), (170, 1160094), (195, 1011364), (204, 966745), (214, 921570), (221, 892380), (255, 773396), (260, 758523), (278, 709410), (321, 614380), (340, 580047), (390, 505682), (417, 472940), (428, 460785), (442, 446190), (510, 386698), (535, 368628), (556, 354705), (642, 307190), (663, 297460), (695, 283764), (780, 252841), (834, 236470), (884, 223095), (1020, 193349), (1070, 184314), (1105, 178476), (1284, 153595), (1326, 148730), (1390, 141882), (1391, 141780), (1605, 122876), (1668, 118235), (1807, 109140), (1819, 108420), (2085, 94588), (2140, 92157), (2210, 89238), (2363, 83460), (2652, 74365), (2780, 70941), (2782, 70890), (3210, 61438), (3315, 59492), (3614, 54570), (3638, 54210), (4170, 47294), (4173, 47260), (4420, 44619), (4726, 41730), (5421, 36380), (5457, 36140), (5564, 35445), (6420, 30719), (6630, 29746), (6955, 28356), (7089, 27820), (7228, 27285), (7276, 27105), (8340, 23647), (8346, 23630), (9035, 21828), (9095, 21684), (9452, 20865), (10842, 18190), (10914, 18070), (11815, 16692), (13260, 14873), (13910, 14178)]