197989740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{401}}^1$

素因数の和:640

約数の個数: 144

約数和(自身を含む): 651452256

約数和(自身を除く): 453462516

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 211, 234, 260, 390, 401, 422, 468, 585, 633, 780, 802, 844, 1055, 1170, 1203, 1266, 1604, 1899, 2005, 2110, 2340, 2406, 2532, 2743, 3165, 3609, 3798, 4010, 4220, 4812, 5213, 5486, 6015, 6330, 7218, 7596, 8020, 8229, 9495, 10426, 10972, 12030, 12660, 13715, 14436, 15639, 16458, 18045, 18990, 20852, 24060, 24687, 26065, 27430, 31278, 32916, 36090, 37980, 41145, 46917, 49374, 52130, 54860, 62556, 72180, 78195, 82290, 84611, 93834, 98748, 104260, 123435, 156390, 164580, 169222, 187668, 234585, 246870, 253833, 312780, 338444, 423055, 469170, 493740, 507666, 761499, 846110, 938340, 1015332, 1099943, 1269165, 1522998, 1692220, 2199886, 2538330, 3045996, 3299829, 3807495, 4399772, 5076660, 5499715, 6599658, 7614990, 9899487, 10999430, 13199316, 15229980, 16499145, 19798974, 21998860, 32998290, 39597948, 49497435, 65996580, 98994870, 197989740]

約数ペア:

[(1, 197989740), (2, 98994870), (3, 65996580), (4, 49497435), (5, 39597948), (6, 32998290), (9, 21998860), (10, 19798974), (12, 16499145), (13, 15229980), (15, 13199316), (18, 10999430), (20, 9899487), (26, 7614990), (30, 6599658), (36, 5499715), (39, 5076660), (45, 4399772), (52, 3807495), (60, 3299829), (65, 3045996), (78, 2538330), (90, 2199886), (117, 1692220), (130, 1522998), (156, 1269165), (180, 1099943), (195, 1015332), (211, 938340), (234, 846110), (260, 761499), (390, 507666), (401, 493740), (422, 469170), (468, 423055), (585, 338444), (633, 312780), (780, 253833), (802, 246870), (844, 234585), (1055, 187668), (1170, 169222), (1203, 164580), (1266, 156390), (1604, 123435), (1899, 104260), (2005, 98748), (2110, 93834), (2340, 84611), (2406, 82290), (2532, 78195), (2743, 72180), (3165, 62556), (3609, 54860), (3798, 52130), (4010, 49374), (4220, 46917), (4812, 41145), (5213, 37980), (5486, 36090), (6015, 32916), (6330, 31278), (7218, 27430), (7596, 26065), (8020, 24687), (8229, 24060), (9495, 20852), (10426, 18990), (10972, 18045), (12030, 16458), (12660, 15639), (13715, 14436)]