68378700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:316

約数の個数: 144

約数和(自身を含む): 216548640

約数和(自身を除く): 148169940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 89, 100, 130, 150, 156, 178, 195, 197, 260, 267, 300, 325, 356, 390, 394, 445, 534, 591, 650, 780, 788, 890, 975, 985, 1068, 1157, 1182, 1300, 1335, 1780, 1950, 1970, 2225, 2314, 2364, 2561, 2670, 2955, 3471, 3900, 3940, 4450, 4628, 4925, 5122, 5340, 5785, 5910, 6675, 6942, 7683, 8900, 9850, 10244, 11570, 11820, 12805, 13350, 13884, 14775, 15366, 17355, 17533, 19700, 23140, 25610, 26700, 28925, 29550, 30732, 34710, 35066, 38415, 51220, 52599, 57850, 59100, 64025, 69420, 70132, 76830, 86775, 87665, 105198, 115700, 128050, 153660, 173550, 175330, 192075, 210396, 227929, 256100, 262995, 347100, 350660, 384150, 438325, 455858, 525990, 683787, 768300, 876650, 911716, 1051980, 1139645, 1314975, 1367574, 1753300, 2279290, 2629950, 2735148, 3418935, 4558580, 5259900, 5698225, 6837870, 11396450, 13675740, 17094675, 22792900, 34189350, 68378700]

約数ペア:

[(1, 68378700), (2, 34189350), (3, 22792900), (4, 17094675), (5, 13675740), (6, 11396450), (10, 6837870), (12, 5698225), (13, 5259900), (15, 4558580), (20, 3418935), (25, 2735148), (26, 2629950), (30, 2279290), (39, 1753300), (50, 1367574), (52, 1314975), (60, 1139645), (65, 1051980), (75, 911716), (78, 876650), (89, 768300), (100, 683787), (130, 525990), (150, 455858), (156, 438325), (178, 384150), (195, 350660), (197, 347100), (260, 262995), (267, 256100), (300, 227929), (325, 210396), (356, 192075), (390, 175330), (394, 173550), (445, 153660), (534, 128050), (591, 115700), (650, 105198), (780, 87665), (788, 86775), (890, 76830), (975, 70132), (985, 69420), (1068, 64025), (1157, 59100), (1182, 57850), (1300, 52599), (1335, 51220), (1780, 38415), (1950, 35066), (1970, 34710), (2225, 30732), (2314, 29550), (2364, 28925), (2561, 26700), (2670, 25610), (2955, 23140), (3471, 19700), (3900, 17533), (3940, 17355), (4450, 15366), (4628, 14775), (4925, 13884), (5122, 13350), (5340, 12805), (5785, 11820), (5910, 11570), (6675, 10244), (6942, 9850), (7683, 8900)]