20956830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:313

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 31297890

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 47, 89, 94, 141, 167, 178, 235, 267, 282, 334, 445, 470, 501, 534, 705, 835, 890, 1002, 1335, 1410, 1670, 2505, 2670, 4183, 5010, 7849, 8366, 12549, 14863, 15698, 20915, 23547, 25098, 29726, 39245, 41830, 44589, 47094, 62745, 74315, 78490, 89178, 117735, 125490, 148630, 222945, 235470, 445890, 698561, 1397122, 2095683, 3492805, 4191366, 6985610, 10478415, 20956830]

約数ペア:

[(1, 20956830), (2, 10478415), (3, 6985610), (5, 4191366), (6, 3492805), (10, 2095683), (15, 1397122), (30, 698561), (47, 445890), (89, 235470), (94, 222945), (141, 148630), (167, 125490), (178, 117735), (235, 89178), (267, 78490), (282, 74315), (334, 62745), (445, 47094), (470, 44589), (501, 41830), (534, 39245), (705, 29726), (835, 25098), (890, 23547), (1002, 20915), (1335, 15698), (1410, 14863), (1670, 12549), (2505, 8366), (2670, 7849), (4183, 5010)]