198378100

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1913}}^1$

素因数の和:2005

約数の個数: 72

約数和(自身を含む): 463517208

約数和(自身を除く): 265139108

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 61, 68, 85, 100, 122, 170, 244, 305, 340, 425, 610, 850, 1037, 1220, 1525, 1700, 1913, 2074, 3050, 3826, 4148, 5185, 6100, 7652, 9565, 10370, 19130, 20740, 25925, 32521, 38260, 47825, 51850, 65042, 95650, 103700, 116693, 130084, 162605, 191300, 233386, 325210, 466772, 583465, 650420, 813025, 1166930, 1626050, 1983781, 2333860, 2917325, 3252100, 3967562, 5834650, 7935124, 9918905, 11669300, 19837810, 39675620, 49594525, 99189050, 198378100]

約数ペア:

[(1, 198378100), (2, 99189050), (4, 49594525), (5, 39675620), (10, 19837810), (17, 11669300), (20, 9918905), (25, 7935124), (34, 5834650), (50, 3967562), (61, 3252100), (68, 2917325), (85, 2333860), (100, 1983781), (122, 1626050), (170, 1166930), (244, 813025), (305, 650420), (340, 583465), (425, 466772), (610, 325210), (850, 233386), (1037, 191300), (1220, 162605), (1525, 130084), (1700, 116693), (1913, 103700), (2074, 95650), (3050, 65042), (3826, 51850), (4148, 47825), (5185, 38260), (6100, 32521), (7652, 25925), (9565, 20740), (10370, 19130)]