28097940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{163}}^1$

素因数の和:218

約数の個数: 144

約数和(自身を含む): 90756288

約数和(自身を除く): 62658348

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, 130, 156, 163, 169, 170, 195, 204, 221, 255, 260, 326, 338, 340, 390, 442, 489, 507, 510, 652, 663, 676, 780, 815, 845, 884, 978, 1014, 1020, 1105, 1326, 1630, 1690, 1956, 2028, 2119, 2210, 2445, 2535, 2652, 2771, 2873, 3260, 3315, 3380, 4238, 4420, 4890, 5070, 5542, 5746, 6357, 6630, 8313, 8476, 8619, 9780, 10140, 10595, 11084, 11492, 12714, 13260, 13855, 14365, 16626, 17238, 21190, 25428, 27547, 27710, 28730, 31785, 33252, 34476, 36023, 41565, 42380, 43095, 55094, 55420, 57460, 63570, 72046, 82641, 83130, 86190, 108069, 110188, 127140, 137735, 144092, 165282, 166260, 172380, 180115, 216138, 275470, 330564, 360230, 413205, 432276, 468299, 540345, 550940, 720460, 826410, 936598, 1080690, 1404897, 1652820, 1873196, 2161380, 2341495, 2809794, 4682990, 5619588, 7024485, 9365980, 14048970, 28097940]

約数ペア:

[(1, 28097940), (2, 14048970), (3, 9365980), (4, 7024485), (5, 5619588), (6, 4682990), (10, 2809794), (12, 2341495), (13, 2161380), (15, 1873196), (17, 1652820), (20, 1404897), (26, 1080690), (30, 936598), (34, 826410), (39, 720460), (51, 550940), (52, 540345), (60, 468299), (65, 432276), (68, 413205), (78, 360230), (85, 330564), (102, 275470), (130, 216138), (156, 180115), (163, 172380), (169, 166260), (170, 165282), (195, 144092), (204, 137735), (221, 127140), (255, 110188), (260, 108069), (326, 86190), (338, 83130), (340, 82641), (390, 72046), (442, 63570), (489, 57460), (507, 55420), (510, 55094), (652, 43095), (663, 42380), (676, 41565), (780, 36023), (815, 34476), (845, 33252), (884, 31785), (978, 28730), (1014, 27710), (1020, 27547), (1105, 25428), (1326, 21190), (1630, 17238), (1690, 16626), (1956, 14365), (2028, 13855), (2119, 13260), (2210, 12714), (2445, 11492), (2535, 11084), (2652, 10595), (2771, 10140), (2873, 9780), (3260, 8619), (3315, 8476), (3380, 8313), (4238, 6630), (4420, 6357), (4890, 5746), (5070, 5542)]