208999908

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{7321}}^1$

素因数の和:7405

約数の個数: 72

約数和(自身を含む): 578350136

約数和(自身を除く): 369350228

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 61, 78, 117, 122, 156, 183, 234, 244, 366, 468, 549, 732, 793, 1098, 1586, 2196, 2379, 3172, 4758, 7137, 7321, 9516, 14274, 14642, 21963, 28548, 29284, 43926, 65889, 87852, 95173, 131778, 190346, 263556, 285519, 380692, 446581, 571038, 856557, 893162, 1142076, 1339743, 1713114, 1786324, 2679486, 3426228, 4019229, 5358972, 5805553, 8038458, 11611106, 16076916, 17416659, 23222212, 34833318, 52249977, 69666636, 104499954, 208999908]

約数ペア:

[(1, 208999908), (2, 104499954), (3, 69666636), (4, 52249977), (6, 34833318), (9, 23222212), (12, 17416659), (13, 16076916), (18, 11611106), (26, 8038458), (36, 5805553), (39, 5358972), (52, 4019229), (61, 3426228), (78, 2679486), (117, 1786324), (122, 1713114), (156, 1339743), (183, 1142076), (234, 893162), (244, 856557), (366, 571038), (468, 446581), (549, 380692), (732, 285519), (793, 263556), (1098, 190346), (1586, 131778), (2196, 95173), (2379, 87852), (3172, 65889), (4758, 43926), (7137, 29284), (7321, 28548), (9516, 21963), (14274, 14642)]