19973070

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{397}}^1$

素因数の和:466

約数の個数: 96

約数和(自身を含む): 57369312

約数和(自身を除く): 37396242

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 43, 45, 65, 78, 86, 90, 117, 129, 130, 195, 215, 234, 258, 387, 390, 397, 430, 559, 585, 645, 774, 794, 1118, 1170, 1191, 1290, 1677, 1935, 1985, 2382, 2795, 3354, 3573, 3870, 3970, 5031, 5161, 5590, 5955, 7146, 8385, 10062, 10322, 11910, 15483, 16770, 17071, 17865, 25155, 25805, 30966, 34142, 35730, 46449, 50310, 51213, 51610, 77415, 85355, 92898, 102426, 153639, 154830, 170710, 221923, 232245, 256065, 307278, 443846, 464490, 512130, 665769, 768195, 1109615, 1331538, 1536390, 1997307, 2219230, 3328845, 3994614, 6657690, 9986535, 19973070]

約数ペア:

[(1, 19973070), (2, 9986535), (3, 6657690), (5, 3994614), (6, 3328845), (9, 2219230), (10, 1997307), (13, 1536390), (15, 1331538), (18, 1109615), (26, 768195), (30, 665769), (39, 512130), (43, 464490), (45, 443846), (65, 307278), (78, 256065), (86, 232245), (90, 221923), (117, 170710), (129, 154830), (130, 153639), (195, 102426), (215, 92898), (234, 85355), (258, 77415), (387, 51610), (390, 51213), (397, 50310), (430, 46449), (559, 35730), (585, 34142), (645, 30966), (774, 25805), (794, 25155), (1118, 17865), (1170, 17071), (1191, 16770), (1290, 15483), (1677, 11910), (1935, 10322), (1985, 10062), (2382, 8385), (2795, 7146), (3354, 5955), (3573, 5590), (3870, 5161), (3970, 5031)]